Patents by Inventor Fujio Mizutani

Fujio Mizutani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing alph-methylstyrene unsaturated dimer
    Patent number: 5481053
    Abstract: A process for preparing unsaturated dimers of .alpha.-methylstyrene comprising dimerizing .alpha.-methylstyrene using activated clay or acid clay as a catalyst, in which the dimerization is carried out in the presence of a carbonic acid ester, preferably ethylene carbonate, which process achieves high selectivity to unsaturated dimers with ease in controlling the reaction temperature.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: January 2, 1996
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masashi Inaba, Shiroh Inui, Hideki Kurokawa, Fujio Mizutani